Investigation of the ultrasonic attenuation in anisotropic weld materials with finite element modeling and grain-scale material description

The attenuation level of elastic pressure waves was specifically examined as a function of the angle between the propagation direction and the grain orientation. The evolution of the attenuation is consistent with the theoretical models. Moreover the simulation results were compared to experimental data available from the literature in 316L stainless steel welds. The simulated and experimental values are in very good agreement.